How to set userpath to a Google Drive folder

I'm attempting to set my default folder to a Google Drive folder. I've entered

>>userpath(path)

once I've navigated to the desired folder, and I receive the following error:

Error using userpath>setUserPath (line 115) Invalid directory or directory does not exist

Error in userpath (line 51) setUserPath(inArg);

Not sure what I'm doing wrong here, any help would be appreciated.